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When a piece of metal is illuminated by a monochromatic light of wavelength λ, then stopping potential is 3Vs. When same surface is illuminated by light of wavelength 2λ, then stopping potential becomes Vs. The value of threshold wavelength for photoelectric emission will be
Options
(a) (4λ)/3
(b) 6λ
(c) 4λ
(d) 8λ
Correct Answer:
4λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - A tuned amplifier circuit is used to generate a carrier frequency of 2 MHz
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A tuned amplifier circuit is used to generate a carrier frequency of 2 MHz
- Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen
- The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.
- The magnifying power of the astronomical telescope for normal adjustment is 50.
- If in an experiment for determination of velocity of sound by resonance tube
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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